Cambridge Secondary (7-9). Stage 8. MCE Science. Workbook - Unit 8: Forces and Motion - Question 24

In this investigation, place a sturdy plank (1–2 metres long) on a fulcrum so it is evenly balanced. Mark evenly spaced points on each side using a metre stick or tape measure. Use weights of known weight. Work in groups.



Start with identical weights balanced at equal distances on opposite sides. Move one weight nearer to the fulcrum and record what happens.